View Compilation Error

0_0_39045155_12910.cpp:27:1: error: 'vector' does not name a type
   27 | vector<Gcd> suf[100005];
      | ^~~~~~
0_0_39045155_12910.cpp: In function 'int main()':
0_0_39045155_12910.cpp:73:39: error: 'suf' was not declared in this scope
   73 |                         for(int j=0;j<suf[i-1].size();++j){
      |                                       ^~~
0_0_39045155_12910.cpp:79:25: error: 'suf' was not declared in this scope
   79 |                         suf[i].push_back({x,y});
      |                         ^~~
0_0_39045155_12910.cpp:85:39: error: 'suf' was not declared in this scope
   85 |                         for(int j=0;j<suf[i].size();++j){
      |                                       ^~~